Real Estate - Investments in Real Estate Properties (Detail) ft² in Thousands, $ in Thousands		Dec. 31, 2021 USD ($) ft² a Building	Dec. 31, 2020 USD ($) ft² a Building
Real Estate Properties [Line Items]
Total investments in real estate properties		$ 53,005,190	$ 50,384,328
Less accumulated depreciation		7,668,187	6,539,156
Net investments in real estate properties		45,337,003	43,845,172
Improved Land [Member]
Real Estate Properties [Line Items]
Total investments in real estate properties		$ 12,294,246	$ 12,017,676
Building and Improvements [Member]
Real Estate Properties [Line Items]
Square feet of properties | ft²		444,413	441,336
Number of buildings | Building		2,310	2,261
Total investments in real estate properties		$ 32,159,514	$ 31,489,943
Development Portfolio, Including Cost of Land: Pre-stabilized [Member]
Real Estate Properties [Line Items]
Square feet of properties | ft²		6,325	6,076
Number of buildings | Building		16	24
Total investments in real estate properties		$ 710,091	$ 553,266
Properties Under Development [Member]
Real Estate Properties [Line Items]
Square feet of properties | ft²		28,638	22,004
Number of buildings | Building		83	61
Total investments in real estate properties		$ 2,019,249	$ 1,329,345
Land [Member]
Real Estate Properties [Line Items]
Square feet of properties | a		6,227	5,304
Total investments in real estate properties	[1]	$ 2,519,590	$ 1,606,358
Other Real Estate Investments [Member]
Real Estate Properties [Line Items]
Total investments in real estate properties	[2]	$ 3,302,500	$ 3,387,740

[1] At December 31, 2021 and 2020, our land was comprised of 6,227 and 5,304 acres, respectively.

[2] Included in other real estate investments were: (i) non-strategic real estate assets acquired that we do not intend to operate long-term; (ii) real estate assets that we intend to redevelop into industrial properties; (iii) land parcels we own and lease to third parties; and (iv) costs associated with potential acquisitions and future development projects, including purchase options on land.